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#!/bin/perl |
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|
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#use strict; |
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use strict qw ( vars refs ); |
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use warnings; |
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|
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#sub POE::Kernel::ASSERT_DEFAULT () { 1 } |
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#sub POE::Kernel::TRACE_DEFAULT () { 1 } |
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#sub POE::Kernel::TRACE_SIGNALS () { 1 } |
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use POE qw ( Session Wheel::Run Filter::Line Filter::Stream ); |
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|
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use Term::ReadLine; |
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|
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my $term; |
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|
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# ========= terminal handling session |
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sub term_work { |
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|
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if (!$term) { |
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$term = new Term::ReadLine 'jash'; |
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} |
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|
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my $prompt = "#> "; |
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#my $OUT = $term->OUT || STDOUT; |
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|
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while ( defined ($_ = $term->readline($prompt)) ) { |
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#$res = eval($_), "\n"; |
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|
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#my $res = execCmd($_); |
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my $res = "issued: $_"; |
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|
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#warn $@ if $@; |
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#print $OUT $res, "\n" unless $@; |
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|
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#$res && print $OUT $res, "\n"; |
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$res && print $res, "\n"; |
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|
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$term->addhistory($_) if /\S/; |
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} |
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|
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} |
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|
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sub term_error { |
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my ($heap, $session, $input, $param) = @_[HEAP, SESSION, ARG0, ARG1 ]; |
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print "error: $input, $param", "\n"; |
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} |
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sub term_stdout { |
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my ($heap, $input, $wheel_id) = @_[HEAP, ARG0, ARG1]; |
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print "Child process in wheel $wheel_id wrote to STDOUT: $input\n"; |
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} |
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sub term_stderr { |
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my ($heap, $session, $input) = @_[HEAP, SESSION, ARG0]; |
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print "stderr: $input", "\n"; |
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} |
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sub term_start { |
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my ($heap, $session) = @_[HEAP, SESSION]; |
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#$program = '/usr/bin/cat -'; |
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#my $program = [ 'terminal_readline.pl', '-' ]; |
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|
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#my $program = 'terminal_readline.pl'; |
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my $program = \&term_work; |
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|
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$heap->{wheel} = POE::Wheel::Run->new( |
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Program => $program, |
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#Priority => +5, # Adjust priority. May need to be root. |
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#User => getpwnam('nobody'), # Adjust UID. May need to be root. |
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#Group => getgrnam('nobody'), # Adjust GID. May need to be root. |
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ErrorEvent => 'term_error', # Event to emit on errors. |
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|
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#StdinEvent => 'stdin', # Event to emit when stdin is flushed to child. |
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StdoutEvent => 'term_stdout', # Event to emit with child stdout information. |
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StderrEvent => 'term_stderr', # Event to emit with child stderr information. |
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|
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# Identify the child process' I/O type. |
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Filter => POE::Filter::Line->new(), # Or some other filter. |
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#Filter => POE::Filter::Stream->new(), # Or some other filter. |
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); |
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|
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|
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#print "Unique wheel ID is : ", $wheel->ID; |
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#print "Wheel's child PID is: ", $wheel->PID; |
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|
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# Send something to the child's STDIN. |
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#$wheel->put( 'input for the child' ); |
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|
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# Kill the child. |
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#$wheel->kill(); |
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#$wheel->kill( -9 ); |
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|
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} |
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|
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|
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sub startTerminal { |
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POE::Session->create( |
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inline_states => { |
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_start => \&term_start, |
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term_error => \&term_error, |
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term_stderr => \&term_stderr, |
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term_stdout => \&term_stdout, |
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} |
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); |
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} |
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# ========= |
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|
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|
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# ========= example worker session |
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sub wt_start { |
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my ($kernel, $session, $heap) = @_[ KERNEL, SESSION, HEAP ]; |
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print "worker started", "\n"; |
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$kernel->post($session, 'wt_work'); |
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} |
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|
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sub wt_work { |
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my ($kernel, $session, $heap) = @_[ KERNEL, SESSION, HEAP ]; |
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print "w"; |
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$kernel->delay('wt_work', 2); |
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} |
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|
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sub startWorker { |
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POE::Session->create( |
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inline_states => { |
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_start => \&wt_start, |
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wt_work => \&wt_work, |
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} |
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); |
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} |
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# ========= |
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|
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|
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|
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# ========= main session |
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sub _start { |
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my ($kernel, $session, $heap) = @_[ KERNEL, SESSION, HEAP ]; |
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print "main session started", "\n"; |
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#my $term = |
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startWorker(); |
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startTerminal(); |
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} |
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|
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sub _stop { |
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my ($kernel, $session, $heap) = @_[ KERNEL, SESSION, HEAP ]; |
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$kernel->signal($heap->{wheel}, "TERM"); |
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delete $heap->{wheel}; |
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print "main session stopped", "\n"; |
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} |
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|
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POE::Session->create( |
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inline_states => { |
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_start => \&_start, |
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_stop => \&_stop, |
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} |
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); |
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# ========= |
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|
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$poe_kernel->run(); |
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exit 0; |
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